Suspension-equalizing device for revolving drums



J. STADLER. SUSPENSION EQUALIZING DEVpCE FOR REVOLVING DRUMS. I I APPLICATION FILED APR. 19, I919. 1,35 1,497. Patented Aug. 31,1920.

2 SHEETS-SHEET l- J. SIADLER.

SUSPENSION EOUALIZINQ D EyICE FOR REVOLVINQ DRUMS. APPUCATION HLVED APR.19, 1919.

1,35 1,497. Patented Aug. 31, 1920.

2 SHEETISSHEET 2.

L/OX/Y 5/007 the same.

JQH1\T STAD'LER, or ,SI-IA'WINIGAN FALLS,,Q1IJEB EC, CANADA:

sUsrENsIoN-EeUALIzINe nnvrcn FOR REVOLVING DRUMS.

To all whom itmay concern: Be itknown that I JOHN STADLER, a subject of the King of Great Britain, residing at Shawinigan Falls, Province of Quebec,"

Canada, have invented certain new-and useful Improvements in Suspension-Equalizing Devices for Revolving Drums; and I do hereby declare that'the following is a full, clear, and exact description of the invention, such as will enable others skilled in, the

art to which it appertains to make and use This invention relates to suspension equalizing devices for revolving drums, used mainly in connection with wood barking machines, and theprincipal object thereof vprovides vfor an arrangement of balancing levers in conjunction with revolving drums suspended from above by chains or other flexible mediums carried over wheels" and having more than two suspending chains; 7

Ar further object of the invention is'to.

provide an automatic equalizing device having means whereby drums of different length may be suspended and the load carried by the respective suspending chains proportioned asdesired.

Another object of the invention is to overcome stresses due to eccentric location existing between the carrying rings andthe consequent heavy stresses among the various 7 suspending chains at every revolution, of the drum. I

A' still further object of the invention provides U shaped pedestals for carrying the suspending chain wheel shafts, which of the novel features of construction, com-' bination and formation'of parts as will be hereinafted more fully described and particularly pointed out in'the appended claims.

In the accompanying drawings has been shown a simple andpreferred form of the invention, it being, "however, understood that Application filed A rnia 1919. Serial No. 291,396.

cise structural details herein exhibited, but

' Ti ri'sl-I-f Specification of Letters Patent. Patented Aug.

' no limitation,isjnecessarily made to the pre the right is hereby reserved to any changes, 7

alterations ormodifications to which re-. course may be had that come within the;

scope of the claimslwithout departing from the spirit of the invention "or sacrificing .the.

efficiency of the same. 1

I In the accompanying drawing s i 1 i Figure 1 isa top planview of the suspension; table and the equalizing mechanism; s Fig; 2 is amodified form otthe equalizing mechanism and showing, the-,applicaw tron of the suspension mechanism to the V drum; and, o Fig. 3 is a detail sectional ViGWf. of one of the adjusting gears showing'its mounting on the table. Y

r Referringnow more particularly to the accompanying l drawings wherein like and corresponding partsare designated by simiz: lar reference characters throughout the several views- 7 s V I r r ,In connection with the wood barking industry, perforated and soliddrums as indicated by the numeral 1 in the drawings, are. of; considerable length and are required to run in places which make the application of carrying wheels and drive beneath, them lmposslble, and mechanical suspen sion has been resorted to, withthe mechani calequipment above, where it is easily accessible andif the drum is used'forpure v poses that require liquids for the process, orfor cleansing, the location ofthe may chinery above the drums permits the prop'er care ofsame. M

The supporting wines, is provided' 'withl' suitable mounting not illustrated and the bearing frames 3 at one side ofrthe support ing table 2, are fixedly mountedthereom being substantially of U-shape, the legs 4, be'-- ing spaced apart and carry bearing standards 5.

Wheels-'6 aremounted in ,the bearing the opening between? the legs lyregisters with similar openings"? inthe'table;

A similar plura ipyph9aring fram s 8,

I standards 5 and each-jbearing frameBjis so positioned with respect tothe table 2,"that are mounted on the opposite side of table and in alinement with frames 3, but these frames 8, are adjustably mounted onthe sub-bases 9, beingmovable in a horizontal direction and at right angles to the'aXis of the shafts 10, carrying the wheels 6.-

' beams 15. Rocker pins 16 connectithe beams A plurality of endless suspending chains 11, carrying the drum 1, pass over wheels 6 and through theopenings'7, Bearing frames 3 are connected together in couples by the, fixed beams 14, while the bearing frames 8, are connected together by the balancing 14 and 15, and are mounted in;bearings 16' fastened to the said beams 14 and 15. v

The connection between the balancing beams 15 and'the bearing frames 8, iseffected by the positioning bars 17, having flat-knife members 18 at each end and which Engage in suitable seats 19 in bearing frames .8 'and the said balancing beams 15.

WVhen the drum is of a dimension'requiring the use of more than twochains, the division of the load and stress upon the chains'is difficult. Manual adjustments pro vided heretofore have permitted]adjustment V in-installation, but as soon asthe drums are putinto operation elongationtakes-place on the chains, which is not uniform and the .on the completed drums; therefore, invaribulk of the load will be carriedby probably only two chains, causing excessive wear and consequent breakage. f Furthermore, on large drums 1t is not possible to assemble them at the factory and machine the carrying rings alllconcentric elongationof the suspending chains',.is automatically done and thus the; suspending chains are always carrying their propor;

. tionate load.

e In'the' present: invention the b'al'an'cing beams 15act'in conjunction with the re- 50 volving drum suspended from above by means of the chains 11 carried over the wheels 6, and any movementby the drum is therefore automatically compensated by the balancing beams 15. a p Themounting illustrated in Fig. 3, shows the: legmemb'ers 4: of'the movable frames 8,

formed with channels 20 which have bearings on the rails 21 of the sub-bases 9 and the gears are mounted ontheir shafts 10 and positioned directly above the'op'enings 7 and in alinement therewith.

As will be clearly understood,the drum when it revolves on its shaft, is supported by the chains and'every movement of the latter is taken up by the said chains. .Likewise adjustment may be made by regulatlng the positioning bars 17 so that an accurate adjustment is possible, balancing lever 15 i always performing its function of ing the stress;

It is likewise obvious, that I may con struct the positioning bars 17 in such manner that the flat knife members 18,,may be adjusted longitudinally with respect to the equalizseats 19 in the bearing frames Sand the," balancing beams 15, and for said'pu'rpose,

I would provide thread connections on the bars 17 and the knife members, so that upon adjustment of the former the said knife members wouldfbe advanced a or retracted, serving to regulate thefdeg'ree of swinging movement of the beams 15.

Having thus fully described invention, what I claim as new and desire to secure by Letters Patentiszr 1. The combination-with a wood barking 'machine having a support, chains suspended from said" support for supporting a revolv-' ing' drum, of stationary and movable bear lngs mounted upon sald support, sprocket wheels journaled within said bearings: over wh ch pass said chams, an equalizlngbeam connecting each pair of movable bearings and said beams being'pivotally supported to said stationary bearings.

2. The combination with a'wood' barking machlne having asupport, chains suspended therefrom and a drum carried by said chains,j of stationary bearings mounted upon said'support, movable bearings mounted upon said support, equalizing beams connecting said bearings, wheels journaled' within said bearings, said'chains adapted topass over said wheels. 7 7

3. The combination with a wood barking machme having a supporting table, chains suspended therefrom and a drum carried by. said chains, stationary bearings mounted upon and at one side of'said table, 'slidable.

bearingsmounted'upon the opposite side of said table, an equaliz ng bar connectlng'said slidable bearings, means for connecting said bar with said stationary bearings, wheels journaled within said bearings and said chalnspassmg over said wheels. r

7 4. A suspension device for revolving drums,"comprising a supporting table, a plurality of slidable bearing framesmounted on said table, a pluralityof oppositely disposed stationary bearing frames secured to said table, wheels mounted in said frames,

chains passing over said wheels and adapted for supporting a 'drum,.-means arrangedbe tween said frames for equalizing the stress encountered by the chains, and means for with 'readjusting certain of said frames spect to the other frames. V

5'. The combination with a wood barking machine having a supporting table, chains an adjustable connection between the'opposuspended therefrom and a drum carried by site ends of said equalizing 'bar andeach 10 said chains, stationary bearings arranged slidable bearing, Wheels journaled Within upon one side of said table, slidable bearings said bearings and said chains passing over mounted upon the opposite side of said said Wheels. v table, a stationary bar connecting each pair I In Witness whereof I have hereunto set of stationary bearings, an equalizing bar my hand i JOHN STADLER.

pivotally connected to said stationary bar, 

